Thank you guys for tips and comments. Perhaps I'm not that bad painter as I think of myself
Skin tone - my photo-fu is weak :/ Actual tone is somewhere between tones visible on my pictures. It is definitely bright, as I wanted something different. The final result is not what I expected it to be, but I like it.
@ToMaZ - smoothness is an art, that I am yet to master

Skin on the body (legs and hands also) is not finished. I will try to smooth transitions, but I'm not expecting miracles. The additional problem for me is that it is my first attempt to paint bigger scale. It is theoretically 54mm scale, but this orc measures approximately 80mm. At such big surfaces every mistake is sooo visible...
@Theotril - believe me, my other works are not worth showing around

As I have mentioned before - drybrush and nothing more

Actually, Illusionrip saw one model painted by me. I think, that he can confirm my words.
@Illusionrip - at least I showed you a box, right?

As of my model - at that moment the orc has only been primed.